Title :
There is no MacWilliams identity for convolutional codes (Corresp.)
Author :
Shearer, James B. ; Mceliece, Robert J.
fDate :
11/1/1977 12:00:00 AM
Abstract :
An example is provided of two convolutional codes that have the same transmission gain but whose dual codes do not. This shows that no analog of the MacWilliams identity for block codes can exist relating the transmission gains of a convolutional code and its dual.
Keywords :
Convolutional codes; Dual codes; Block codes; Convolutional codes; Entropy; Equations; Gradient methods; Hafnium; Hamming weight; Inverse problems; Probability density function; Testing;
Journal_Title :
Information Theory, IEEE Transactions on
DOI :
10.1109/TIT.1977.1055785
